findstr or grep that autodetects chararacter encoding (UTF-16)

Question

I want to do this:

 findstr /s /c:some-symbol *

or the grep equivalent

 grep -R some-symbol *

but I need

Answer 1

You didn't say which platform you want to do this on.

On Windows, you could use PowerGREP, which automatically detects Unicode files that start with a byte order mark. (There's also an option to auto-detect files without a BOM. The auto-detection is very reliable for UTF-8, but limited for UTF-16.)